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Harcros Chemicals Antifoam 30 Food Grade

Harcros Chemicals Antifoam 30 Food Grade is a 30% antifoam emulsion of polydimethylsiloxane that is water-dilutable and designed primarily for use in food processing. It is also recommended for many industrial applications, such as textile dyeing and finishing, leather finishing, latex processing, soap and detergent manufacture, and boiler water defoaming. Concentrations of the emulsion required for effective defoaming range from 5 to 100 ppm.

Ingredient Name: Polydimethylsiloxane

Functions: Anti-Foaming Agent, Defoamer

Chemical Family: Silicones, Siloxanes

Technical Data Sheet

Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Ingredient Name
Agrochemical Functions
CASE Ingredients Functions
Cleaning Ingredients Functions
Cosmetic Ingredients Functions
Food Ingredients Functions
Industrial Additives Functions
CAS No.
Proprietary

Features & Benefits

Benefit Claims
Labeling Claims
Agrochemicals Features
CASE Ingredients Features
Key Attributes
  • Fast Acting
  • EfficientDefoaming
  • Food Grade
  • Readily Dispersible inWater

Applications & Uses

I&I Cleaning Applications
Industrial Additives End Use
Ink & Toner Type
Diluting the Antifoam

AF-30 FG disperses readily in aqueous systems. The emulsion can be added directly to the foamer with only mild agitation to thoroughly disperse. For use in systems where maximum efficiency isdesired the silicone emulsion should be pre-diluted with water before being added to the foamer. If it is necessary to store the diluted material for longer than 8 hours it should be frequently agitated.

Product Applications
  • Instant Coffee
  • Potato Washing
  • Dying & Sizing
  • Rice
  • Meat & Poultry
  • Adhesives
  • Latex Processing
  • Fruit Processing
  • Ink (water based)
  • Soft Drinks
  • Soap
  • Pickle Processing
  • Juice

Properties

Physical Form
Appearance
White liquid
Dispersible in
Aqueous Systems
Typical Properties
ValueUnitsTest Method / Conditions
Flash Point (PMCC)min. 200°F
Activity30.0%
pH (at 1% aqueous Solution)4.0 - 5.0
Specific Gravity (at 25°C)1.01
Consistency (at 25°C)Creamy Liquid
Heat Stability43.3°C
Characteristics
ValueUnitsTest Method / Conditions
Chemical NatureSilicone Emulsion

Regulatory & Compliance

Regulatory Information

Food Additive Status

AF-30 FG has been used in food related applications under FDA regulation 21 CFR 173.340 as a direct food at levels up to 10 ppm silicone solids. Generally, it has been found to comply with the following regulations for use as an indirect additive in the manufacture of food packaging components or food contact surfaces: 21 CFR 175.105, 176.170, 176.180, 176.200, 176.210, 177.1200, 177.2260, 177.2800, 177.3120.

Technical Details & Test Data

Processing Guidelines

Only 5-50 ppm is required in most foaming systems. In testing to determine the most effective working concentration, a good starting point is to add 10 parts of antifoam emulsion (as supplied) per million parts of foamer. The results at this concentration will indicate whether to increase or decrease the amount.

Storage & Handling

Shelf Life
12 months
Storage & Handling Information
  • This product exhibits excellent storage stability when proper handling procedures are followed. As with most emulsions, storage in a cool place (60-75F max.) in a tightly closed container will provide maximum shelf life. Under these conditions, it has a minimum shelf life of one year.
  • Because it contains water it should be protected from freezing. Repeated freezing may damage the container or may separate the emulsion rendering it unsuitable for use.